biergstrom



Dec. 16, 1952- C. V. BERGSTROM CURTAIN TYPE- IN$IDE STORM WINDOW PROTECTION Filed Feb. 6, 1950 Patented Dec. 16, 1952 UNITED- STATES PATENT CURTAIN was. INSIDE. STORM-.WINDQW PROTECTION Gar-I V. Bergstrom, Milwaukee,- Wis.

ADplicationFebruary 6, 1950; SeriaLNo 1142 699 The inventionrelatestocurtains and more particularly to. a curtain arranged and. constructed to function as, an. inside storm..window..

Usually. storm or winter protection for, window openings, is vprovided'by an exterior stormwindow or specially, constructed double pane. windows. One object of this invention is to provide aninexpensive, storm protection for. windowsv in the formlof a. curtain readily mounted adjacent the inner, side, of the, window to act. as. a storm. sash and; also. provide for lightv transmission and permitof'ready; adjustment for ventilation.

Afurther object of. the invention is toprovide an, inside storm, window. protection particularly sll tfidtior use inconnectionwith metal casement 'windowstoeliminate the excessive condensation usually occurring in, cold,- weather when metal windowsiare-used.

Afurther object is to. provide acombination inside.s torm-protection and decorative mesh curtain.

Another object of; the invention is to provide an inside curtain type stormprotection, for windows which can be, left.- up. permanently through all seasons. of, the.- year Without affecting. insulating emciency, translucency, or desired summer ventilation.

Atfurther objectof. theinvention'is. to provide nOveLmethods-or means for; quickly mounting the auntainrod or, rods, between the jamb faces of thewindow frame.

The invention further consists in the'several featureshereinafter described and more particularly. pointed out inthe appended claims.

Inthe drawings:

Fig..1- is, an inside elevation, view of a curtain type-st rm-WindQW protectionembodying the. invention;

2: is. a. detailed; vertical sectional view taken on the line 2-2 of Fig. 1;

.3. is; a detailed horizontal sectional view taken'on thejline 3-3 of Fig. 1;

4 -is: an elevational view of a. curtain rod, Harts ing. o n: way;

Fig.- 5. isa viewysimilar to Fig. 4-showing another urtalnirod; I

Eig 6, i s-a;view,.similar= to Fig. 4showinganother ormotci rtaini rod;

Eig 'i is ;a viewsimilarto Fig. 4showing another form; of curtain rod Fig 8 is aqdetailed;enlargedvertical sectional view -taken on theline 8-8ofFig. 1

Eig, 95 -15; vertical; sectional view. through. a window curtain mbodyin he: mventiom, parts being broken away;

withthe, usual sashopening inwhichthawindbw H is; mounted. As; shown the, window. lil. hasia metalsash frame IZ having aglasslight, or pane l3.

Mountedwithin the. frame. IL and. in spaced relation.with the inner side.ofith e window. I]. so as to provide a dead air space l4,;is-.a..cur.t'ain l5 embodying the, invention arranged and. constructed to function. as an inside storm window.

The curtain. I15 is preferably formed: of two. curtainsections, each, carried. at. the, top. by.- a.. sun.- portingxrail; l6v andheld imposition .at the bottom by arail |.1..

Each, of the curtain sectionsare oi thin, flexible or pliable translucent or transparent, plastic sheeting formed in two 1ayers:|.8:joined together adjacent their top: and bottom. edges. by stitching or other suitable. fastening-means l8 and; spaced apart inwardly of their .iOinedpor-tions to provide a, dead air-space- 20. Thecurtain sections are-of a:.-width: so" that. they overlap each; other in. the closed: position. of thercurtain and also. closely, engagethe sides; of the-window framerl ,fl whereeparts thereofadjacent said sides maybegathered. The layers of each curtain section. are? of a length. so that; their end headings or portions 2l may, divergev from each other, as most clearly; shown; in Fig 9,- andhave brushing contact with theupper and lower portions; of the window frame 1,; so that. the curtain. in; closed position; forms, an efzfective barrier for the passage of. any air past the sill, jambs. and header of the-window frame In: that may seen; through the: window l.l and provides the dead airspace ZIJ-between it. and the window I I.

Thelayers N3 of the. curtain are-kept. permanently; separated bythe: rails l6 and. 11 which engagethe upper and lowenjoin'edzedges. of said layers; said rails being; of. a width. to :provide. the desired dead air. space; 20' between. the; layers.

Theupper supporting rail' Isis-formed of telescopically fitted metal'bars 22 so thatthey may be, readily adjustedto different widthsof windowopenings. InlFig, 4 the bars- 22are. formed of;- channel sections .whileinFigs. firand'l. thebars aretubular sections. Forfirmly mounting. the rail in the window: frame In. I.have.. shown. in Fig.. 4 each of. the. bars. 22 ashaving pointed prongs 23 extending fromthechannel web. and also. an. aperturedi ear. 24'. extending from this web to receive a screw or nail 253 In Fig. 6

each tubular bar has an end plug 24a provided with a spiked end 25a. In Fig. 7 the outer end of each bar carries a rubber plug 26 provided with a suction cup. The rail structures above described may also be used as bottom rails l! or the structure shown in Fig. may be used for this purpose. Referring to Fig. 5, the rail is formed of channel shaped telescopically fitted metal bars 21 which have weights 28 mounted in their ends, Fig. 9 showing an end view of one of these bars.

In using the spiked end rails, the operator first telescopes the bars of the rail so that it may be placed inside the window opening and then brings it into the desired horizontal position within said opening and then pushes the bars apart so that their spiked ends will engage the side jambs of the window and thus prick marks the place of attachment of the rail. He then removes the rail and separates the bars from each other and then each bar of the rail is separately hammered into the jamb at the prick guide points. Then the spiked ends are pulled out of the enlarged holes and the telescoping sections are again put together and the rail threaded through the curtain and then the rail with the curtain thereon is again placed in position and the bars extended so that the spiked ends engage in the holes in the jamb formed as above described. When the rails are of the form shown in Fig. 4 after the above procedure has been followed, the nails or screws are inserted in the ears 24 and firmly fastened in the jamb.

As noted above, the rail forms shown in Figs. 4, 6, and 7 may be used at the top and also at the bottom. Where the weighted rail shown in Fig. 5 is used at the bottom, it is only necessary to thread this through the layers forming the curtain to hold the curtain suspended from the top rail and bring the diverging ends of the layers forming the lower heading into brushing contact with the window sill.

The curtain sections as noted are of thin, flexible or pliable translucent or transparent plastic sheeting and this sheeting may be decorated with designs formed in or on the sheeting so that the curtain acts as a decoration as well as an insulator. In packaging the curtain for merchandising no attempt would be made to provide exact sewed lengths for all windows but preferably only the top edge would be sewed and the bottom edge would be cut to fitting length by the purchaser and sewed or stapled together adjacent the bottom to accommodate the lower rail which may be placed about one inch above the sill. The curtains would also be of several widths, and the extra width material would be bunched, folded, or gathered adjacent either jamb effectively providing seals betweenthe curtain and the sides of the window frame.

The curtain sections overlap along the central portion of the window for sealing purposes and for ventilating purposes this overlap can be opened up by spreading the sections apart along desired, I have shown in Figs. 2 and 8 a strip 29 of felt or other suitable material mounted on angled brackets 30 attached to the sill adjacent the lower edge of the curtain.

It is to be noted that the curtain, when hun should be tensioned between the upper and lower rails, this being effected either by the weighted lower rail or the proper spacing of the upper and lower fixed rails. Normally for winter use the central portion of the curtain, when closed, should be kept free of folds to provide for better light transmission and viewing if transparent. From the above it will be noted that I have provided a curtain disposed adjacent the usual window to provide a dead air space between the curtain and the window and in which the curtain itself is formed of spaced layers of material which form a dead air space acting as an inside storm window which due to the formation of the curtain may be partially or fully opened or shut from the inside as desired.

Instead of using the felt strip 29 as shown in Fig. 8, felt strips 3| may be mounted at the top and bottom portions of the Window so as to be overlapped by the diverging ends of the curtain as indicated in Fig. 9 and act as a supplemental barrier for the passage of cold air past the curtain.

It'will also be noted that certain advantages of the invention may be obtained if the dead air space in the curtain itself is omitted but the curtain otherwise constructed so as to be hung within a window with the diverging ends formed by folded portions of the curtain above and below the hangers brushing the top and bottom portions of the window, as shown in Fig. 10. In other words, such a curtain has a single sheet of material forming the complete curtain whether such material is of single or laminated structure.

I desire it to be understood that this invention is not to be limited to any particular form or arrangement of parts except in so far as such limitations may be included in the claims.

What I claim as my invention is:

1. An inside storm protection for windows comprising a curtain formed of widthwise separable sections, each section formed of multiple layers of translucent flexible plastic sheeting, means joining the layers of each section together adjacent their top and bottom edges, said sections being of a width so that they overlap each other in the closed position of the curtain and so that the outer side edge of each section engages the adjacent side of the window, and rails at the upper and lower portions of said curtain engageable with said joined portions to spread said layers apart between said joined portions to provide a dead air space and tension said layers between said joined portions, the upper of said rails having means for attaching it to the sides of a window opening.

2. An inside storm protection for windows comprising a curtain formed of widthwise separable sections, each section formed of multiple layers of translucent flexible plastic sheeting, means joining the layers of each section together adjacent their top and bottom edges and providing diverging complementary header sealing flap portions having brushing contact with the adjacent side of the window opening, said sections being of a width so that they overlap each other in the closed position of the curtain and so that the outer side edge of each section engages the adjacent side of the window, and rails at the upper and lower portions of said curtain engageable with said joined portions to spread said layers apart between said joined portions to provide a dead air space and tension said layers between said joined portions, the upper of said rails having means for attaching it to the sides of a window opening.

3. The structure as defined in claim 2 in combination with barriers of flexible material mounted on and extending lengthwise of the top and bottom of the window opening and in engagement with and disposed between said complementary header sealing flap portions.

CARL V. BERGSTROM.

REFERENCES CITED The following references are of record in the file of this patent:

Number Number 6 UNITED STATES PATENTS Name Date Jennings Aug. 22, 1916 Tessier Jan. 29, 1918 Watson June 24, 1924 Brooks Sept. 6, 1938 Greene June 8, 1943 Nichols June 14, 1949 FOREIGN PATENTS Country Date Sweden May 9, 1903 

